这句话怎么理解？
The mother chimp and her babies play in the tree and ,after they come into her arms, we see them go to sleep togther in their nest for the night. 在句子中间又有and又有after，怎么回事，有这个用法吗？
问：选择 1Jane likes singing .We often hear her ___after class Asing Bto sing CsingsDsang
答：hear后面可以跟从句,但是这里已经是宾格her而不是she,所以不是从句,故而选A,详情>>
问：已知a,b属于R,求证:a^2+b^2>=a*b+a+b-1
答：答案如下： 由（a-1)^2+(b-1)^2>=0 得到a^2+b^2+2>=2(a+b)--------(1) 又由(a+1)^2+(b+1)^2>=2(a+...详情>>
问：“ prefer to...rather than ”是一个词组吗？
答：prefer to do rather than do sth 与其作后者的事情的不如做前者去事情。 可以等同于= prefer to do instead o...详情>>
